Fearon became our Non-Executive Chairman. Fearon Non-Executive Chairman of our Board since 2023. Fearon became our Non-Executive Chairman.

Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. The non-GAAP financial measures include: adjusted EPS, adjusted operating income, free cash flow and adjusted EBITDA. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

We help our customers increase postconsumer recycled content, formulate with bio-based materials, reduce product carbon footprint, incorporate alternative chemistries (e.g. non-halogen solutions), use less material during production, reduce energy required for production, and build alternative energy applications. The Green Guides emphasize the importance of clear, evidence--based, and non-deceptive environmental marketing claims. Consumption of fuel (excluding feedstock) (7.30.1.1) Heating value Select from: ☑ HHV (higher heating value) (7.30.1.2) MWh from renewable sources 0 (7.30.1.3) MWh from non-renewable sources 181564.61 290 (7.30.1.4) Total (renewable and non-renewable) MWh 181564.61 Consumption of purchased or acquired electricity (7.30.1.1) Heating value Select from: ☑ Unable to confirm heating value (7.30.1.2) MWh from renewable sources 250828.67 (7.30.1.3) MWh from non-renewable sources 158822.01 (7.30.1.4) Total (renewable and non-renewable) MWh 409650.68 Consumption of self-generated non-fuel renewable energy (7.30.1.1) Heating value Select from: ☑ Unable to confirm heating value (7.30.1.2) MWh from renewable sources 3066.11 (7.30.1.4) Total (renewable and non-renewable) MWh 291 3066.11 Total energy consumption (7.30.1.1) Heating value Select from: ☑ Unable to confirm heating value (7.30.1.2) MWh from renewable sources 253894.78 (7.30.1.3) MWh from non-renewable sources 340386.61 (7.30.1.4) Total (renewable and non-renewable) MWh 594281.4 [Fixed row] (7.30.6) Select the applications of your organization’s consumption of fuel.

You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 5 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures. The non-GAAP financial measures include estimated 2022 Dyneema business and Composites Platform pro forma EBITDA. This is due to the inherent difficulty of forecasting the timing and amount of certain items, such as, but not limited to, restructuring costs, environmental remediation costs, acquisition related costs, and other non-routine costs.

These specialized polymers offer advantages compared to traditional materials that include design freedom, processability, weight reduction, chemical resistance, flame retardance and lower cost. Approximately $3.0 million of these costs will be non-cash charges. The registered investment company non-US equity funds invest in underlying securities that are actively traded in public, non-US markets.

In the wire and cable industry, thermoplastics serve to protect by providing electrical insulation, flame resistance, durability, water resistance, and color coding to wire coatings and connectors. These specialized polymers offer advantages compared to traditional materials that include design freedom, processability, weight reduction, chemical resistance, flame retardance and lower cost. The registered investment company non-US equity funds invest in underlying securities that are actively traded in public, non-US markets.

Newlin agrees to standard non-compete and non- solicitation covenants following the date of termination and (4) Mr. McAlindon provided a release of claims, and an acknowledgement that she remains subject to certain confidentiality, non-competition and non- solicitation obligations. An abstention or broker non-vote will have no effect on the proposal as the abstention or broker non-vote will not be counted in determining the number of votes cast.

Below is a reconciliation of this non-GAAP financial measure to the most directly comparable financial measure calculated and presented in accordance withGAAP. Below is a reconciliation of this non-GAAP financial measure to the most directly comparable financial measure calculated and presented in accordance with GAAP. Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Avient Investor Presentation - Jefferies Industrials Conference August 2020.pdf August 2020 investor non-GAAP reconciliation.pdf August 2020 investor non-GAAP

ColorMatrix™ Amosorb™ 4020G Non-nylon based PET oxygen scavenger with lower haze and less impact on recycle stream ColorMatrix™ Amosorb™ 4020G is a non-nylon based next generation oxygen scavenger for PET rigid packaging with a reduction in haze and lower impact on the recycle stream. PRODUCT BULLETIN KEY BENEFITS • Non-nylon based • Up to 50% lower haze • Lower impact on PET recycle stream • 40% increased shelf-life at maximum allowable use limit • No induction period, provides immediate protection • Can be used with any PET & most rPET grades • Simple to use with existing mono- layer equipment • Suitable for use on multi-layer machines MARKET & APPLICATIONS • PET and rPET rigid packaging for food and beverage REGULATORY ColorMatrix Amosorb 4020G meets direct food contact regulatory requirements in major markets.

Forward – Looking Statements Page 2 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans. • A reconciliation of each non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.polyone.com. Strong past performance demonstrates that our strategy and execution are working • Megatrends align with our strengths • Innovation and services provide differentiation and competitive advantage • Strong and proven management team driving growth and performance • Addressable market exceeds $40 billion The New PolyOne: A Specialty Growth Company 2015 Target: $2.50 Adjusted EPS Page 15 Schedule I Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Below is a reconciliation of non-GAAP financial measures to the most directly comparable measures calculated and presented in accordance with U.S.